About
We turn the biggest gut feeling in software into a number.
Product-market fit decides whether a company compounds or stalls — and almost everyone measures it with intuition or a survey that doesn't predict anything. We measure it from behavior.
The story
We grew into the bigger question.
We started as ChurnRX, helping companies diagnose and cure churn. But our customers kept telling us the real value wasn’t fixing churn — it was finally knowing whether their growth was durable.
So we became what we always were: PMFintel — the product-market-fit intelligence platform. Same rigor, bigger question.
The methodology
Rigor you can show your board.
ChurnRX is built on the retention research of Greg Daines — “the Churn Doctor”, a leading authority on customer retention and durable SaaS growth, and on one of the largest behavioral retention benchmarks in the industry: 2.5M+ data points, and growing.
The thesis is simple and well-supported: customers stay when they get results — not when they’re merely satisfied. Net Promoter Score correlates about 0.01 with who actually renews. We measure fit from behavior, so the number means something.
What we believe
Four convictions.
Fit is a number, not a feeling.
Product-market fit decides everything downstream — so it should be measured, not debated.
Behavior beats sentiment, every time.
What customers do predicts retention. What they say in a survey doesn't. We read the behavior.
Know the truth early.
The best retention strategy is seeing that fit is eroding before it shows up in the headline numbers.
Rigor is a feature.
Clinical-grade survival analysis and a real benchmark — not opinion, not best-practice folklore.
See your real PMF.
Measure your product-market fit from behavior — and find out exactly how durable your growth is.
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